From: Sinan Kaya <okaya@kernel.org>
To: Huacai Chen <chenhc@lemote.com>, Bjorn Helgaas <bhelgaas@google.com>
Cc: linux-pci@vger.kernel.org, Huacai Chen <chenhuacai@gmail.com>,
Jiaxun Yang <jiaxun.yang@flygoat.com>,
Tiezhu Yang <yangtiezhu@loongson.cn>
Subject: Re: [PATCH] PCI/portdrv: Don't disable pci device during shutdown
Date: Mon, 21 Sep 2020 11:50:51 -0400 [thread overview]
Message-ID: <45e7272c-e074-d894-9319-ee29f451f282@kernel.org> (raw)
In-Reply-To: <1600680138-10949-1-git-send-email-chenhc@lemote.com>
On 9/21/2020 5:22 AM, Huacai Chen wrote:
> Use separate remove()/shutdown() callback, and don't disable pci device
> during shutdown. This can avoid some poweroff/reboot failures.
>
> The poweroff/reboot failures can easily reproduce on Loongson platforms.
> I think this is not a Loongson-specific problem, instead, is a problem
> related to some specific PCI hosts. On some x86 platforms, radeon/amdgpu
> devices can cause the same problem, and commit faefba95c9e8ca3a523831c2e
> ("drm/amdgpu: just suspend the hw on pci shutdown") can resolve it.
This sounds like a quirk to me rather than a behavior that should be
applied to all platforms.
next prev parent reply other threads:[~2020-09-21 15:50 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-21 9:22 [PATCH] PCI/portdrv: Don't disable pci device during shutdown Huacai Chen
2020-09-21 15:50 ` Sinan Kaya [this message]
2020-09-22 2:11 ` Huacai Chen
2020-09-22 4:30 ` Sinan Kaya
2020-09-22 6:20 ` Tiezhu Yang
2020-09-22 6:16 ` Huacai Chen
2020-12-31 6:15 ` Huacai Chen
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